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2. Diamond clarity - Wikipedia

   en.wikipedia.org/wiki/Diamond_clarity

   The grader views the diamond for the first time through the table, studying the culet area of the stone for inclusions. The diamond is then set down and picked up with the tweezers in a table-to-culet hold. In this position, the diamond can be studied from the pavilion side, and the crown side, examining the diamond through each facet for ...

3. Brilliant (diamond cut) - Wikipedia

   en.wikipedia.org/wiki/Brilliant_(diamond_cut)

   Some diamonds with painted girdles receive lower grades in the GIA's cut grading system, for reasons given in a 2005 GIA article. [4] Several groups have developed diamond cut grading standards. These standards differ somewhat on which proportions make the best cut. There are certain proportions that are considered best by two or more groups ...

4. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond ...

5. Boucheron - Wikipedia

   en.wikipedia.org/wiki/Boucheron

   There are only eight pieces of the Cobra model in rose gold set all round with rubies and a pear-cut diamond and emerald eyes. Entwined around a rose gold case, the Python model, a serpent set with multi-coloured sapphires, diamonds and two sapphires, will be brought out in 26 pieces, as a reference to the famous jeweler's address, 26 place ...

6. Cut (gems) - Wikipedia

   en.wikipedia.org/wiki/Cut_(gems)

   A gemstone desired to be used in jewelry is cut depending on the size and shape of the rough stone, as well as the desired piece of jewelry to be made. As a general rule, a cut gemstone will reduce the mass (in carats) by about 50%. [1] Among the several techniques used to work with gemstones are sawing, grinding, sanding, lapping, polishing ...

7. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.

8. Elizabeth Taylor Diamond - Wikipedia

   en.wikipedia.org/wiki/Elizabeth_Taylor_Diamond

   The Elizabeth Taylor Diamond is an Asscher cut diamond with a fairly large culet facet, indicating it was likely cut before the 1920s, when culet facets were being phased out. A report (1132411262) dated 9 May 2011 from the Gemological Institute of America states that the diamond is D colour, VS1 clarity; accompanied by a diagram indicating ...

9. Diamond cut - Wikipedia

   en.wikipedia.org/wiki/Diamond_cut

   A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.